A-33 2D ELASTIC MODEL FOR WAVEFIELD INVESTIGATIONS OF SUBSALT OBJECTIVES DEEP WATER GULF OF MEXICO SUMMARY 1 A full elastic 2D synthetic model has been generated by the SMAART* Joint Venture Consortium to simulate the primary signal and noise characteristics of sub-salt objectives associated with the deep-water environment of the Gulf of Mexico. A very detailed geologic model has been derived based on real exploration data and has served as input to a finite difference shot computation process. The data has been rigorously computed with many offsets and can be decimated to mimic shot geometries of long offset streamer data.